Mar 16, 2013 7:00am PDT
exchange with dianne feinstein, he ought to send a thank you for burnishing his credentials and shaking things up. and north korea shaking a sword or is this a real threat? the pentagon taking today's missile test seriously and making plans to defend measured american shores. it's an about-face for president obama. he's now scrambling to put together that which he got rid of. former ambassador john bolton joins us. >> worries are now growing over the possibility of a nuclear attack from north korea after missile testing there, so says the pentagon, which is now stepping up the american missile defense system. the u.s. planning to deploy more ground-based interceptors like these on the west coast. and still new at his job, chuck hagel says it will be up to us to defend ourselves. >> assuring steps the united states will take to stay ahead of the challenge posed by iran and north korea's development of longer range ballistic missiles capabilities. >> gregg: south korea says the north test fired two short range missiles over the water. these are file pictures of a previous launch.